Income Taxes (Details) - USD ($)
|
3 Months Ended |
9 Months Ended |
12 Months Ended |
Mar. 31, 2018 |
Dec. 31, 2017 |
Mar. 31, 2018 |
Mar. 31, 2017 |
| Current tax expense: |
|
|
|
|
| Provision for current income taxes related to state and foreign taxes |
|
|
$ 18,000
|
|
| U.S. federal corporate tax rate |
21.00%
|
34.00%
|
|
34.00%
|
| Blended federal statutory rate |
|
|
30.79%
|
|
| Reconciliation of income tax (benefit) expense to the federal statutory rate |
|
|
|
|
| Federal income tax benefit at the statutory rate |
|
|
$ (3,082,000)
|
$ (8,127,000)
|
| State taxes, net of federal effect |
|
|
(376,000)
|
(225,000)
|
| Foreign taxes |
|
|
10,000
|
31,000
|
| R&D tax credit |
|
|
|
(298,000)
|
| Expiring NOLs and tax credits |
|
|
12,115,000
|
|
| Impact of state rate change |
|
|
|
(270,000)
|
| Warrant liability |
|
|
|
(474,000)
|
| Valuation allowance |
|
|
(95,547,000)
|
5,918,000
|
| Enactment of Tax Cuts and Jobs Act |
|
|
87,697,000
|
|
| Shortfall in tax benefit - stock compensation |
|
|
11,000
|
3,352,000
|
| True-up |
|
|
(1,217,000)
|
|
| Other |
|
|
407,000
|
112,000
|
| Income tax expense |
|
|
18,000
|
19,000
|
| Deferred tax assets: |
|
|
|
|
| Inventories |
$ 1,954,000
|
|
1,954,000
|
2,921,000
|
| Warranty reserve |
415,000
|
|
415,000
|
1,383,000
|
| Bad debt reserve |
1,417,000
|
|
1,417,000
|
2,514,000
|
| Deferred revenue |
1,144,000
|
|
1,144,000
|
1,254,000
|
| Net operating loss (NOL) carryforwards |
151,137,000
|
|
151,137,000
|
244,874,000
|
| Tax credit carryforwards |
18,663,000
|
|
18,663,000
|
19,784,000
|
| Depreciation, amortization and impairment loss |
2,766,000
|
|
2,766,000
|
2,505,000
|
| Other |
1,312,000
|
|
1,312,000
|
2,517,000
|
| Deferred tax assets |
178,808,000
|
|
178,808,000
|
277,752,000
|
| Valuation allowance for deferred tax assets |
(173,752,000)
|
|
(173,752,000)
|
(269,299,000)
|
| Deferred tax assets, net of valuation allowance |
5,056,000
|
|
5,056,000
|
8,453,000
|
| Deferred tax liabilities: |
|
|
|
|
| Federal benefit of state taxes |
(5,056,000)
|
|
(5,056,000)
|
(8,453,000)
|
| Net deferred tax assets |
|
|
|
|
| Valuation allowance |
|
|
|
|
| Change in valuation allowance |
|
|
$ 95,500,000
|
$ 17,000,000
|