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Note 9 - Accrued and Other Liabilities - Noncurrent - Summary of Accrued Liabilities (Details) - USD ($)
Sep. 30, 2017
Sep. 30, 2016
Payroll and related $ 1,870,579 $ 382,845
Deferred revenue 268,580 637,763
Warranty reserve 179,101 285,402
Accrued contract costs 197,034 197,034
Deferred rent 46,101
Total 2,561,395 1,503,044
Deferred rent 93,456
Long-term warranty reserve 71,582
Total $ 165,038