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Schedule of Segment Reporting Information (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Revenue from external customers |  | $ 15,797,000 |  | $ 30,172,000 |  | $ 55,075,000 |  | $ 77,079,000 |
Intercompany revenues |  |  |  |  |  |  |  |  |
Gross profit |  | 2,224,000 |  | 4,750,000 |  | 5,546,000 |  | 12,700,000 |
Research and development |  | 243,000 |  | 157,000 |  | 538,000 |  | 598,000 |
Interest income |  | 2,000 |  | 28,000 |  | 23,000 |  | 112,000 |
Interest expense |  | (77,000) |  | (87,000) |  | (209,000) |  | (306,000) |
Interest expense-financing fees |  | (11,000) |  | (58,000) |  | (28,000) |  | (187,000) |
Depreciation and amortization |  | 409,000 |  | 478,000 |  | 1,208,000 |  | 1,189,000 |
Segment income (loss) before income taxes |  | (1,455,000) |  | 1,348,000 |  | 624,000 |  | 2,921,000 |
Income tax (benefit) expense |  | (2,836,000) | [1] | (133,000) |  | (2,840,000) | [1] | (128,000) |
Segment income (loss) |  | 1,381,000 |  | 1,481,000 |  | 3,464,000 |  | 3,049,000 |
Expenditures for segment assets |  | 482,000 | [2] | 122,000 | [3] | 1,132,000 | [2] | 1,488,000 | [3]
Income tax benefit valuation allowance |  |  |  |  |  | 2,351,000,000 |  |  |
Treatment [Member] |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Revenue from external customers |  | 8,893,000 |  | 7,066,000 |  | 24,094,000 |  | 24,469,000 |
Intercompany revenues |  | 220,000 |  | 226,000 |  | 1,199,000 |  | 879,000 |
Gross profit |  | 2,487,000 |  | 1,094,000 |  | 4,845,000 |  | 5,533,000 |
Research and development |  | 52,000 |  | 49,000 |  | 142,000 |  | 194,000 |
Interest income |  |  |  |  |  |  |  | 1,000 |
Interest expense |  | (51,000) |  | (34,000) |  | (88,000) |  | (80,000) |
Interest expense-financing fees |  |  |  |  |  |  |  |  |
Depreciation and amortization |  | 319,000 |  | 373,000 |  | 939,000 |  | 912,000 |
Segment income (loss) before income taxes |  | 1,317,000 |  | 280,000 |  | 1,669,000 |  | 2,577,000 |
Income tax (benefit) expense |  | 1,000 |  | (170,000) |  | (13,000) |  | (165,000) |
Segment income (loss) |  | 1,316,000 |  | 450,000 |  | 1,682,000 |  | 2,742,000 |
Expenditures for segment assets |  | 482,000 |  | 95,000 |  | 1,109,000 |  | 1,095,000 |
Services [Member] |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Revenue from external customers |  | 6,904,000 |  | 23,106,000 |  | 30,981,000 |  | 52,610,000 |
Intercompany revenues |  | 5,000 |  | 6,000 |  | 44,000 |  | 19,000 |
Gross profit |  | (263,000) |  | 3,656,000 |  | 701,000 |  | 7,167,000 |
Research and development |  | 18,000 |  | 7,000 |  | 50,000 |  | 119,000 |
Interest income |  |  |  |  |  |  |  |  |
Interest expense |  | (1,000) |  | (3,000) |  | (9,000) |  | (13,000) |
Interest expense-financing fees |  |  |  |  |  |  |  |  |
Depreciation and amortization |  | 85,000 |  | 97,000 |  | 255,000 |  | 259,000 |
Segment income (loss) before income taxes |  | (984,000) |  | 2,813,000 |  | (1,721,000) |  | 5,162,000 |
Income tax (benefit) expense |  |  |  | 2,000 |  | 10,000 |  | 2,000 |
Segment income (loss) |  | (984,000) |  | 2,811,000 |  | (1,731,000) |  | 5,160,000 |
Expenditures for segment assets |  |  |  | 24,000 |  | 14,000 |  | 385,000 |
Medical [Member] |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Revenue from external customers |  |  |  |  |  |  |  |  |
Intercompany revenues |  |  |  |  |  |  |  |  |
Gross profit |  |  |  |  |  |  |  |  |
Research and development |  | 162,000 |  | 81,000 |  | 311,000 |  | 221,000 |
Interest income |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  |
Interest expense-financing fees |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  |
Segment income (loss) before income taxes |  | (162,000) |  | (81,000) |  | (311,000) |  | (221,000) |
Income tax (benefit) expense |  |  |  |  |  |  |  |  |
Segment income (loss) |  | (162,000) |  | (81,000) |  | (311,000) |  | (221,000) |
Expenditures for segment assets |  |  |  |  |  |  |  |  |
Segments Total [Member] |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Revenue from external customers |  | 15,797,000 |  | 30,172,000 |  | 55,075,000 |  | 77,079,000 |
Intercompany revenues |  | 225,000 |  | 232,000 |  | 1,243,000 |  | 898,000 |
Gross profit |  | 2,224,000 |  | 4,750,000 |  | 5,546,000 |  | 12,700,000 |
Research and development |  | 232,000 |  | 137,000 |  | 503,000 |  | 534,000 |
Interest income |  |  |  |  |  |  |  | 1,000 |
Interest expense |  | (52,000) |  | (37,000) |  | (97,000) |  | (93,000) |
Interest expense-financing fees |  |  |  |  |  |  |  |  |
Depreciation and amortization |  | 404,000 |  | 470,000 |  | 1,194,000 |  | 1,171,000 |
Segment income (loss) before income taxes |  | 171,000 |  | 3,012,000 |  | (363,000) |  | 7,518,000 |
Income tax (benefit) expense |  | 1,000 |  | (168,000) |  | (3,000) |  | (163,000) |
Segment income (loss) |  | 170,000 |  | 3,180,000 |  | (360,000) |  | 7,681,000 |
Expenditures for segment assets |  | 482,000 |  | 119,000 |  | 1,123,000 |  | 1,480,000 |
Corporate Segment [Member] |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Revenue from external customers |  |  | [4] |  | [4] |  | [4] |  |
Intercompany revenues |  |  | [4] |  | [4] |  | [4] |  |
Gross profit |  |  | [4] |  | [4] |  | [4] |  |
Research and development |  | 11,000 | [4] | 20,000 | [4] | 35,000 | [4] | 64,000 |
Interest income |  | 2,000 | [4] | 28,000 | [4] | 23,000 | [4] | 111,000 |
Interest expense |  | (25,000) | [4] | (50,000) | [4] | (112,000) | [4] | (213,000) |
Interest expense-financing fees |  | (11,000) | [4] | (58,000) | [4] | (28,000) | [4] | (187,000) |
Depreciation and amortization |  | 5,000 | [4] | 8,000 | [4] | 14,000 | [4] | 18,000 |
Segment income (loss) before income taxes |  | (1,626,000) | [4] | (1,664,000) | [4] | 987,000 | [4] | (4,597,000) |
Income tax (benefit) expense |  | (2,837,000) | [4] | 35,000 | [4] | (2,837,000) | [4] | 35,000 |
Segment income (loss) |  | 1,211,000 | [4] | (1,699,000) | [4] | 3,824,000 | [4] | (4,632,000) |
Expenditures for segment assets |  |  | [4] | $ 3,000 | [4] | 9,000 | [4] | $ 8,000 |
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest | [5] |  |  |  |  | $ 987,000 |  |  |
[1] | Includes tax benefit recorded in amount of approximately $2,351,000 resulting from release of valuation allowance on the Company’s deferred tax assets (see “Note 12 – Income Taxes” below a discussion of this tax benefit).
[2] | Net of financed amount of $271,000 and $348,000 for the three and nine months ended September 30, 2021, respectively.
[3] | Net of financed amount of $751,000 and $883,000 for the three and nine months ended September 30, 2020, respectively.
[4] | Amounts reflect the activity for corporate headquarters not included in the segment information.
[5] | Amounts includes approximately $5,381,000 of “Gain on extinguishment of debt” recorded in connection with the Company’s PPP Loan which was forgiven by the SBA effective June 15, 2021 (see “Note 8 – Long Term Debt – PPP Loan” for information of this loan forgiveness).

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