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Note 9 - Accrued Liabilities (Tables) | 9 Months Ended
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Jun. 30, 2018
Notes Tables |
Schedule of Accrued Liabilities [Table Text Block] |
|  | June 30, |  |  | September 30, |
|  | 2018 |  |  | 2017 |
Payroll and related |  | $ | 1,788,948 |  |  | $ | 1,870,579 |
Deferred revenue |  |  | 1,175,948 |  |  |  | 268,580 |
Accrued contract costs |  |  | 184,508 |  |  |  | 197,034 |
Severance |  |  | 231,676 |  |  |  | - |
Warranty reserve |  |  | 148,860 |  |  |  | 179,101 |
Deferred rent |  |  | - |  |  |  | 46,101 |
Total |  | $ | 3,529,940 |  |  | $ | 2,561,395 |
Schedule of Product Warranty Liability [Table Text Block] |
|  | Three months ended |  |  | Nine months ended |
|  | June 30, |  |  | June 30, |
|  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Beginning balance |  | $ | 169,204 |  |  | $ | 449,141 |  |  | $ | 179,101 |  |  | $ | 356,984 |
Warranty provision |  |  | - |  |  |  | (2,761 | ) |  |  | 12,361 |  |  |  | 108,608 |
Warranty settlements |  |  | (20,344 | ) |  |  | (46,201 | ) |  |  | (42,602 | ) |  |  | (65,413 | )
Ending balance |  | $ | 148,860 |  |  | $ | 400,179 |  |  | $ | 148,860 |  |  | $ | 400,179 |

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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249 + Details
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