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CONSOLIDATED STATEMENTS OF CHANGES IN PARTNER'S CAPITAL - USD ($) | 3 Months Ended | 115 Months Ended
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Mar. 31, 2017
Increase (Decrease) in Partners' Capital |  |  |
Balance | $ (35,315,177) | $ (34,224,726) |
Balance (in units) | 124,386 | 124,409 |
Distribution to Partners | $ (1,119,481) | $ (1,119,687) |
Stock Buyback |  | $ (42,548) | $ (40,274,000)
Stock Buyback (in units) |  | (23) |
Net income | 1,878,558 | $ 1,894,234 |
Balance | $ (34,556,100) | $ (33,492,726) | $ (33,492,726)
Balance (in units) | 124,386 | 124,386 | 124,386
Subtotal |  |  |
Increase (Decrease) in Partners' Capital |  |  |
Balance (in units) | 180,225 | 180,225 |
Balance (in units) | 180,225 | 180,225 | 180,225
General Partnership |  |  |
Increase (Decrease) in Partners' Capital |  |  |
Balance | $ (351,745) | $ (340,840) |
Balance (in units) | 1,802 | 1,802 |
Distribution to Partners | $ (11,195) | $ (11,197) |
Stock Buyback |  | (426) |
Net income | 18,786 | 18,942 |
Balance | $ (344,154) | $ (333,521) | $ (333,521)
Balance (in units) | 1,802 | 1,802 | 1,802
Treasury Units |  |  |
Increase (Decrease) in Partners' Capital |  |  |
Balance (in units) | (55,839) | (55,816) |
Stock Buyback (in units) |  | (23) |
Balance (in units) | (55,839) | (55,839) | (55,839)
Class A |  |  |
Increase (Decrease) in Partners' Capital |  |  |
Balance | $ (28,280,285) | $ (27,407,924) |
Balance (in units) | 144,180 | 144,180 |
Distribution to Partners | $ (895,585) | $ (895,749) |
Stock Buyback |  | (34,038) |
Net income | 1,502,846 | 1,515,387 |
Balance | $ (27,673,024) | $ (26,822,324) | $ (26,822,324)
Balance (in units) | 144,180 | 144,180 | 144,180
Class B |  |  |
Increase (Decrease) in Partners' Capital |  |  |
Balance | $ (6,683,147) | $ (6,475,961) |
Balance (in units) | 34,243 | 34,243 |
Distribution to Partners | $ (212,701) | $ (212,741) |
Stock Buyback |  | (8,084) |
Net income | 356,926 | 359,904 |
Balance | $ (6,538,922) | $ (6,336,882) | $ (6,336,882)
Balance (in units) | 34,243 | 34,243 | 34,243

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