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CONSOLIDATED STATEMENTS OF CASH FLOWS ¥ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 USD ($) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 CNY (¥)
Cash flows from operating activities |  |  |  |
Net income/(loss) | $ (9,807) | ¥ (63,981) | ¥ (100,426) | ¥ 44,940
Adjustments to reconcile net income/(loss) to net cash provided by/(used in) operating activities: |  |  |  |
Depreciation and amortization | 4,838 | 31,565 | 26,801 | 26,329
Amortization of operating lease right-of-use asset | 5,622 | 36,684 | 30,559 |
Share-based compensation expense | 145 | 947 | 1,624 | 8,121
Bad debt provision | 1,364 | 8,903 | 5,985 | 5,645
Foreign exchange gain, net | (150) | (980) | (23) | (372)
Impairment loss | 5,624 | 36,699 | 38,754 |
Deferred income tax | (744) | (4,853) | 6,714 | (2,212)
Gain on disposal of subsidiaries | (115) | (752) |  |
Gain from deregistration of subsidiaries | (608) | (3,967) | (1,841) | (2,858)
Gain from derecognition of liabilities | (602) | (3,926) |  | (15,226)
Disposal loss from property and equipment | 73 | 474 | 1,227 | 105
Loss from equity method investment | 24 | 155 | 518 | 908
Gain from bargain purchase | (6,172) | (40,273) |  |
Gain from fair value change of contingent consideration payable |  |  | (1,322) | (5,444)
Changes in operating assets and liabilities: |  |  |  |
Accounts receivable | (593) | (3,868) | (3,027) | 1,762
Prepaid and other current assets | 1,915 | 12,495 | 6,651 | (6,844)
Amounts due from related parties | (108) | (706) | (1,213) | (1,105)
Other non-current assets | (23) | (150) | (13,539) | (3,154)
Accounts payable | 745 | 4,860 | 1,135 | (7,895)
Accrued and other liabilities | 3,031 | 19,772 | (38,312) | (29,396)
Income tax payable | 333 | 2,170 | 5,753 | 5,153
Deferred revenue | (832) | (5,431) | 13,079 | 9,681
Amounts due to related parties | 88 | 572 | (725) | (734)
Operating lease liabilities | (3,355) | (21,889) | 12,397 |
Other non-current liabilities | 45 | 292 | (979) | (1,959)
Net cash provided by/(used in) operating activities | 738 | 4,812 | (10,210) | 25,445
Cash flows from investing activities |  |  |  |
Purchase of available-for-sale investments | (52,874) | (345,000) | (219,000) | (222,000)
Proceeds from available-for-sale investments | 43,525 | 284,000 | 210,000 | 303,000
Purchase of held-to-maturity investments | (19,923) | (130,000) | (387,000) | (671,000)
Maturity and proceeds from held-to-maturity investments | 17,778 | 116,000 | 426,000 | 694,000
Purchase of property and equipment | (444) | (2,894) | (8,704) | (8,755)
Prepayment for leasehold improvement | (1,213) | (7,914) | (8,059) | (9,877)
Purchase of intangible assets | (8) | (52) | (156) | (295)
Purchase of subsidiaries, net of cash acquired | 5,766 | 37,622 |  |
Purchase of other non-current assets | (2,553) | (16,660) | (54,142) | (1,590)
Proceed from disposal of subsidiaries, net of cash balance at disposed entities | 2 | 15 | 237 | 3
Payment as result of disposal of subsidiaries |  |  | (25,532) | (112,000)
Collection of loan receivables |  |  | 42,677 |
Loan to third party | (5,149) | (33,600) | (25,000) |
Collection of loan to third party |  |  | 16,000 |
Net cash used in investing activities | (15,097) | (98,513) | (33,153) | (28,520)
Cash flows from financing activities |  |  |  |
Proceeds from issuance of ordinary shares, net of expenses | 5,453 | 35,578 |  | 45,402
Proceeds from minority shareholder capital injection |  |  | 559 | 1,470
Proceeds from short-term borrowing | 1,533 | 10,000 |  |
Proceeds from long-term borrowing | 1,470 | 9,594 |  |
Repayments of borrowing from third party |  |  | (41,179) |
Net cash provided by (used in) financing activities | 8,456 | 55,172 | (40,620) | 46,872
Effects of exchange rate changes on cash, cash equivalents and restricted cash | 88 | 574 | 75 | 58
Net change in cash, cash equivalents and restricted cash | (5,815) | (37,955) | (83,908) | 43,855
Cash, cash equivalents and restricted cash at beginning of year | 24,151 | 157,600 | 241,508 | 197,653
Cash, cash equivalents and restricted cash at end of year | 18,336 | 119,645 | 157,600 | 241,508
Supplemental disclosure of cash flow information |  |  |  |
Income tax paid | (407) | (2,657) | (449) | (597)
Interest paid | (21) | (134) |  |
Supplemental disclosure of non-cash investing and financing activities: |  |  |  |
Derecognition of assets other than cash of disposed subsidiaries/deregistered subsidiaries | 150 | 980 | 81 | 1,607
Derecognition of liabilities of disposed subsidiaries/deregistered subsidiaries, net of recognized amount due to the disposed subsidiaries/deregistered subsidiaries | 1,777 | 11,595 | 958 | 5,719
Contingent consideration of purchase of subsidiary |  |  | (1,322) | ¥ (5,444)
Negative consideration from a business combination |  |  | (9,100) |
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities | $ 14,728 | ¥ 96,099 | ¥ 150,603 |

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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration