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Mezzanine and Stockholders' Equity - Additional Information (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 18, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018
Class of Stock [Line Items] |  |  |  |  |  |
Repurchase of common shares |  |  |  | $ 40,000 | $ 0 |
Holdback shares not issued to former shareholders (in shares) |  |  |  | 480,212 |  |
Stock options exercised (in shares) |  |  |  | 111,000 | 240,500 |
Options exercised pursuant to cashless exercise provision (in shares) |  |  |  |  | 60,536 |
Shares issued in cashless exercise provision (in shares) |  |  |  |  | 47,576 |
Options granted (in shares) |  |  |  | 45,000 |  |
Warrants exercised (in shares) |  |  |  | 41,624 | 210,625 |
Proceeds from warrants exercised |  |  |  | $ 400,000 | $ 1,500,000 |
Treasury shares (in shares) |  | 1,944,054 |  | 1,944,054 |  | 1,850,603
Minimum |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Exercise price of exercises during period (in dollars per share) |  | $ 1.5 | $ 0.01 | $ 1.5 | $ 0.01 |
Exercise price of warrants (in dollars per share) |  |  |  | 9.00 | 4.00 |
Maximum |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Exercise price of exercises during period (in dollars per share) |  | $ 5.79 | $ 10 | $ 5.79 | $ 10 |
Exercise price of warrants (in dollars per share) |  |  |  | 11.00 | 10.00 |
Allied Pacific of California |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Repurchase of common shares | $ 1,700,000 |  |  |  |  |
Shares repurchased (in shares) | 1,662,571 |  |  |  |  |
Treasury shares (in shares) |  | 1,775,561 |  | 1,775,561 |  | 1,682,110
CDSC |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Dividends paid |  |  |  | $ 1,200,000 |  |
Restricted Stock Units (RSUs) |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Share-based compensation |  |  |  | $ 200,000 |  |
Stock Compensation Plan |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Recognition term of unrecognized share-based compensation |  |  |  | 3 months |  |
APC Stock Option |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Proceeds of options exercised |  |  |  | $ 500,000 | $ 800,000 |
APCN share Holder |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Purchase of treasury shares (in shares) |  |  |  |  |  | 168,493
APC Common Stock |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Dividends paid |  | $ 10,000,000 | $ 2,000,000 |  |  |
Network Medical Management, Inc. | Stock Compensation Plan |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Unrecognized share-based compensation expense |  | $ 200,000 |  | $ 200,000 |  |
Holdback Shares |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Treasury shares (in shares) |  | 93,451 |  | 93,451 |  |

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