| 5. Notes Payable (Details) - USD ($) | Mar. 31, 2016 | Sep. 30, 2015 | 
|---|---|---|
| Total Debt | $ 16,349,210 | $ 16,011,226 | 
| Current portion | 1,452,388 | 1,443,036 | 
| Long-term portion | 14,896,822 | 14,568,190 | 
| Credit line [Member] | ||
| Total Debt | 658,405 | 669,351 | 
| Term Loan [Member] | ||
| Total Debt | 7,150,766 | 7,628,438 | 
| Note payable to individual [Member] | ||
| Total Debt | 97,044 | 92,441 | 
| Acquisition note payable [Member] | ||
| Total Debt | 400,000 | 395,251 | 
| Revolver Loan [Member] | ||
| Total Debt | $ 8,042,995 | $ 7,225,745 | 
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- Definition Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Represents the aggregate of total long-term debt, including current maturities and short-term debt. No definition available. 
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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