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Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Operating activities:    
Net income $ 1,385 $ 1,023
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 997 1,097
Impairment of goodwill 198
Gain on sale of assets (18) (9)
Stock-based compensation expense 121 162
Deferred tax benefit (65) (98)
Bad debt expense 53 27
Effect of acquisition fair value adjustment 41
Changes in operating assets and liabilities, net of effect from acquisitions:    
Accounts receivable (46) (337)
Short-term investments 258 (12)
Prepaid expenses and other assets (142) (11)
Accounts payable (374) 490
Accrued expenses and other current liabilities (75) 180
Deferred revenue 335 142
Right of use assets and liabilities, net (18) 23
Net cash provided by operating activities 2,452 2,875
Investing activities:    
Acquisition of non-controlling interest in SureHarvest Services, LLC, net of tax effect (1,000)
Acquisition of Postelsia Holdings, Ltd. (300)
Proceeds from sale of assets 34 1
Purchases of property, equipment and software development costs (464) (369)
Proceeds from maturity of short-term investments 253
Net cash used in investing activities (730) (1,115)
Financing activities:    
Repayments of notes payable (42)
Proceeds from long term debt 1,030
Proceeds from finance lease obligations 24
Repayments of finance lease obligations (8) (7)
Proceed from stock option exercise 5
Stock repurchase under Stock Buyback Plan (1,037) (555)
Net cash provided by / (used) in financing activities 14 (604)
Net change in cash 1,736 1,156
Cash at beginning of period 2,638 1,482
Cash at end of period $ 4,374 $ 2,638